Mistake 1: element 'litepal' must be declared
The reason for the error is that litepal.xml is not placed in the assets folder.
Move litepal.xm to the assets folder, then click Make Project under the Build folder and there will be no exception.
Error 2: Class referenced in the manifest, `org.litepal.LitePalApplication`, was not found in the project or the libraries. The solution is as follows: